I've posted this myself atleast a dozen times on this site and know others have as well. This is for both new and old doesn't matter. Rinse Tron untill most of the "dust" is gone. Take a bucket with PH adjusted water (PH is up to you but I would look at 5.5-5.8) and add Tron to water then let soak. After an hour or so check water and see how much it has risen then dump water and repeat. Normally takes a couple 3 times for it to stabilize but it will.